19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * $Id: ExtensionsTable.java 469672 2006-10-31 21:56:19Z minchau $ 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xalan.extensions; 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.Hashtable; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.Vector; 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.res.XSLMessages; 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.res.XSLTErrorResources; 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xalan.templates.StylesheetRoot; 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xpath.XPathProcessorException; 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xpath.functions.FuncExtFunction; 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Class holding a table registered extension namespace handlers 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @xsl.usage internal 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class ExtensionsTable 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Table of extensions that may be called from the expression language 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * via the call(name, ...) function. Objects are keyed on the call 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * name. 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @xsl.usage internal 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Hashtable m_extensionFunctionNamespaces = new Hashtable(); 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * The StylesheetRoot associated with this extensions table. 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private StylesheetRoot m_sroot; 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * The constructor (called from TransformerImpl) registers the 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * StylesheetRoot for the transformation and instantiates an 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * ExtensionHandler for each extension namespace. 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @xsl.usage advanced 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public ExtensionsTable(StylesheetRoot sroot) 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws javax.xml.transform.TransformerException 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_sroot = sroot; 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Vector extensions = m_sroot.getExtensions(); 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson for (int i = 0; i < extensions.size(); i++) 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionNamespaceSupport extNamespaceSpt = 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson (ExtensionNamespaceSupport)extensions.get(i); 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionHandler extHandler = extNamespaceSpt.launch(); 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (extHandler != null) 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson addExtensionNamespace(extNamespaceSpt.getNamespace(), extHandler); 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Get an ExtensionHandler object that represents the 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * given namespace. 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param extns A valid extension namespace. 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return ExtensionHandler object that represents the 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * given namespace. 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public ExtensionHandler get(String extns) 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return (ExtensionHandler) m_extensionFunctionNamespaces.get(extns); 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Register an extension namespace handler. This handler provides 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * functions for testing whether a function is known within the 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * namespace and also for invoking the functions. 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri the URI for the extension. 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param extNS the extension handler. 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @xsl.usage advanced 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void addExtensionNamespace(String uri, ExtensionHandler extNS) 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson m_extensionFunctionNamespaces.put(uri, extNS); 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Execute the function-available() function. 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param ns the URI of namespace in which the function is needed 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param funcName the function name being tested 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return whether the given function is available or not. 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws javax.xml.transform.TransformerException 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean functionAvailable(String ns, String funcName) 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws javax.xml.transform.TransformerException 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson boolean isAvailable = false; 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != ns) 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionHandler extNS = 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson (ExtensionHandler) m_extensionFunctionNamespaces.get(ns); 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (extNS != null) 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson isAvailable = extNS.isFunctionAvailable(funcName); 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return isAvailable; 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Execute the element-available() function. 1259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param ns the URI of namespace in which the function is needed 1269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param elemName name of element being tested 1279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return whether the given element is available or not. 1299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws javax.xml.transform.TransformerException 1319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean elementAvailable(String ns, String elemName) 1339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws javax.xml.transform.TransformerException 1349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson boolean isAvailable = false; 1369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != ns) 1379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionHandler extNS = 1399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson (ExtensionHandler) m_extensionFunctionNamespaces.get(ns); 1409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (extNS != null) // defensive 1419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson isAvailable = extNS.isElementAvailable(elemName); 1429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return isAvailable; 1449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Handle an extension function. 1489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param ns the URI of namespace in which the function is needed 1499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param funcName the function name being called 1509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param argVec arguments to the function in a vector 1519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param methodKey a unique key identifying this function instance in the 1529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * stylesheet 1539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param exprContext a context which may be passed to an extension function 1549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * and provides callback functions to access various 1559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * areas in the environment 1569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return result of executing the function 1589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws javax.xml.transform.TransformerException 1609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Object extFunction(String ns, String funcName, 1629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Vector argVec, Object methodKey, 1639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExpressionContext exprContext) 1649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws javax.xml.transform.TransformerException 1659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Object result = null; 1679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != ns) 1689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionHandler extNS = 1709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson (ExtensionHandler) m_extensionFunctionNamespaces.get(ns); 1719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != extNS) 1729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson try 1749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson result = extNS.callFunction(funcName, argVec, methodKey, 1769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson exprContext); 1779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (javax.xml.transform.TransformerException e) 1799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw e; 1819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (Exception e) 1839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new javax.xml.transform.TransformerException(e); 1859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else 1889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new XPathProcessorException(XSLMessages.createMessage(XSLTErrorResources.ER_EXTENSION_FUNC_UNKNOWN, new Object[]{ns, funcName })); 1909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //"Extension function '" + ns + ":" + funcName + "' is unknown"); 1919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return result; 1949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Handle an extension function. 1989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param extFunction the extension function 1999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param argVec arguments to the function in a vector 2009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param exprContext a context which may be passed to an extension function 2019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * and provides callback functions to access various 2029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * areas in the environment 2039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return result of executing the function 2059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @throws javax.xml.transform.TransformerException 2079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 2089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Object extFunction(FuncExtFunction extFunction, Vector argVec, 2099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExpressionContext exprContext) 2109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throws javax.xml.transform.TransformerException 2119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Object result = null; 2139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String ns = extFunction.getNamespace(); 2149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != ns) 2159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson ExtensionHandler extNS = 2179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson (ExtensionHandler) m_extensionFunctionNamespaces.get(ns); 2189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (null != extNS) 2199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson try 2219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson result = extNS.callFunction(extFunction, argVec, exprContext); 2239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (javax.xml.transform.TransformerException e) 2259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw e; 2279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson catch (Exception e) 2299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new javax.xml.transform.TransformerException(e); 2319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else 2349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new XPathProcessorException(XSLMessages.createMessage(XSLTErrorResources.ER_EXTENSION_FUNC_UNKNOWN, 2369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson new Object[]{ns, extFunction.getFunctionName()})); 2379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return result; 2409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 242